Merge "Export libarect_headers to llndk api surface" am: 77f3da77 am: 7b0895b0

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2268547



Change-Id: I1c252e5a3dc927822a87e3231945d3811a22981b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>